Search Results for author: Warren Powell

Found 9 papers, 0 papers with code

Stochastic Optimization for Vaccine and Testing Kit Allocation for the COVID-19 Pandemic

no code implementations4 Jan 2021 Lawrence Thul, Warren Powell

The pandemic caused by the SARS-CoV-2 virus has exposed many flaws in the decision-making strategies used to distribute resources to combat global health crises.

Active Learning Decision Making +1

Reinforcement Learning for Dynamic Bidding in Truckload Markets: an Application to Large-Scale Fleet Management with Advance Commitments

no code implementations25 Feb 2018 Yingfei Wang, Juliana Martins Do Nascimento, Warren Powell

Truckload brokerages, a $100 billion/year industry in the U. S., plays the critical role of matching shippers with carriers, often to move loads several days into the future.

Management

MOLTE: a Modular Optimal Learning Testing Environment

no code implementations13 Sep 2017 Yingfei Wang, Warren Powell

The Matlab-based simulator allows the comparison of a number of learning policies (represented as a series of . m modules) in the context of a wide range of problems (each represented in its own . m module) which makes it easy to add new algorithms and new test problems.

Experimental Design

An optimal learning method for developing personalized treatment regimes

no code implementations6 Jul 2016 Yingfei Wang, Warren Powell

A treatment regime is a function that maps individual patient information to a recommended treatment, hence explicitly incorporating the heterogeneity in need for treatment across individuals.

Clustering Multi-Armed Bandits

Finite-time Analysis for the Knowledge-Gradient Policy

no code implementations15 Jun 2016 Yingfei Wang, Warren Powell

We consider sequential decision problems in which we adaptively choose one of finitely many alternatives and observe a stochastic reward.

The Knowledge Gradient with Logistic Belief Models for Binary Classification

no code implementations8 Oct 2015 Yingfei Wang, Chu Wang, Warren Powell

We consider sequential decision making problems for binary classification scenario in which the learner takes an active role in repeatedly selecting samples from the action pool and receives the binary label of the selected alternatives.

Binary Classification Classification +2

The Knowledge Gradient Policy Using A Sparse Additive Belief Model

no code implementations18 Mar 2015 Yan Li, Han Liu, Warren Powell

We propose a sequential learning policy for noisy discrete global optimization and ranking and selection (R\&S) problems with high dimensional sparse belief functions, where there are hundreds or even thousands of features, but only a small portion of these features contain explanatory power.

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